Prototype Problems.- Guaranteed Approaches.- Probabilistic Uncertainties.- Optimization in Frame of Guaranteed Approach.- Uncertainties and Worst Case Scenarios.- Optimal Design of Beams and Plates with Uncertainties.- Uncertainties in Fracture Mechanics and Optimal Design Formulations.- Beams and Plates with Brittle-Fracture Constraints.- Optimization of Axisymmetric Shells Against Brittle Fracture.- Shape and Thickness Distribution of Pressure Vessels.-...